Machines



3 Sheets-Sheet, l

L. M. RUMSEY.

Chain-Machine.

No. 198,690. Patented Dec. 25,1877.

N. PETERS. WOTOJJYNOGRAFHER. WASHINGTON. D. U.

4 3 Sheets-Sheet 2. L.-M.RUMS-E Y.

, Chain-Machine. No. 198,690. Patented Dec. 25,1877.

ATTEET. INVENTUFI iffi 3 Sheets-ShetB. L. M. RUMSEY. 4 Chain-Machine.

Patented Dec. 25,1877.

A T T E E T.

N PETERS, PHUTD L|THOGRAPHER, WASH l M. .RUMsEY, OF ST. LQUISLMISSQURI, AssIe oR 0 Om-HAL PATENT QFFIGE a v 1. i WR GHT I O MOSES met-19E SAME LA E- 1 1 PRQvEM tI Q w-MwHLNe.

i Sp ecifi oation forming part bf Letters Patent No. 5195, 690, dated ecember 25,1877'fapplication filed i To all whom it may concern: Be it known that "I, L wIs M. RUMsEY, of the city of St. Louis, inthe state of Missouri; have invented a certain new and useful Improvement in Machines for Manufacturing Chains for. Chain-Pumps, and for other pun poses andjI hereby declare the following to be a full, clear, and exact description thereof,

reference being had to the accompanying draw: ings, makingpartof this specification.

My improvement relates to that class-of chain-machines which form the firstpartof the link with jaws that force the wire'around apin, and the last part of the linkbyj means of a bifurcatedfOrmiHg-arm, with an oscilla torymotion. Y These improvements will first be described,

and then pointed out inthe claims: i i

In the drawings, Figure l is a perspective view of the machineto which my improve-v mentsare applied. "Fig. 2 is a sectional top view of the parts directly engaged in forming the link. Fig. 3 is' a front viewof the. same. Fig. 4. is Ia side view 'of "the forming-arm, part in section. Fig. 5 is an axial section through; "the friction apparatus. Fig. 6 is a top view of the wire-feeding device. Fig. 7 is a side view of'the feed-rolls. Fig. 8 is a sectional.

view through part of the device for giving vertical movement to the upper feed-roll; Fi g.

9 shows the wire-holding device in part. i 1 A A are the legs of the machine, and B the bed or body. O is a countereshaft, having- I journal-bearing inthebed and on a pedestal,

D. 1 Theshaft G has upon it a driving-pulley,

E, and fl'y-wheel F, which arefattached together, but whichare loose on the shaft 0. ft t The frictionsurfaces are forced together by a spring,H,that may be of rubber or spiral:

- metal. One end of the spring bears against the hub of the loose pulley E, or a washer, and the other end of i the spring bears against the washer J,and against the washerJ screws ."the nut K.

It'will be seen fthat'by means of the nut K.

the tension of the spring H may be adjusted to regulate the pressure together of thefriction-surfaces f and G, which form a frictionclutch, by which rotationis communicated to the shaft 0 from the driving-pulley E. v v1 The purpose of this frictiondeviceis to alp y lowthe machineto stop on any or wrong bend forming in the wire and becoming caught in themachinery, so as to endanger breakage.

just sufficient pressure torun the machine" agethe machine stops, and the driving-belt. upon 'the pulley Ecarr'ies forward such pulley and the fiy-wheelwithout turningf-shaft v0. The shaft 0 ihasupon it'a spur-piniomtL,

main or cam shaft N of the machine. I I

Ois a pulley'that h'ascontinuous rotation Y "R is a groovedfeedwheel over Q, andwhose The wheel R is upon a *shaft,"T. The shafts in opposite directions. v. I i

The box- W,.in which the wheel endof the shaft T has bearing has capacity for vertical movement, so as to allow of the wheel B being ward motion of the samel At other times the friction of the wheels Q R upon the wire is "does not move forward,except whenthe feedwheel R is forced down upon it. a i

I will now describe the device for giving a socket at the lower end of a nut, Z,which 'nut screws upon a rod, a, and hasvertical movement in the housing W. The rod-a is hinged at b to one end of the 1everHc,ful-. crumed inthe standard d, and having: at the rear end a shoe, '0, bearing upon acampg, upon the camshaftN. V z- 9 w It will be observed thatathe-upward move- Within the socket 'of the nut 2; above the X in its socket.

unis

I The frictional surfaces are set together with i when there is noirregularity; .Jout on an accident taking place that would endangerbreakwhich'engages with a spur-wheel,M, upon the by a beltupon it. Upon the pulley-shaft P is i a grooved feed-wheel, Q, over which passes I a the wire from which the chain-links are formed. v 1 i groove embracesthe upper-part of the wire.

P and Tare connected by spur-wheels Uiand V, so that the shafts turn simultaneously, but

forced; down upon the wire to cause. the for i not great enough cto draw it through the straightening-rolls, and consequentlythewire vertical movementto the wheel R. Upon the Y box W rests a pin, X, whose upper end enters ment of the shoee will cause the downward i movement of the feed-wheel R; 1 s i upperend of the.pin x,- is a'rubberorother spring, -X", to allow somemovement of the pin- In feeding the wire into the machine against 3 1 the-stop K it is evident that in case of any inequality in the wire it might be forced against the stop K with sufficient force to bend the wire and foul the machine; or it might not feed at all.

In order to overcome this trouble, which al-. ways occurs where iron" meets iron, Iintroduce the spring X,.(see Fig. 8,) which may be of rubber, spiral wire, or any elastic substance.

The tension of the spring can be adjusted the screw to and socket-nut Z.

Z is a jamnut, to holdtherod a in its proper place of adjustment in the nut Z. The wire from. the coil passes between horizontal straightening-rolls h and vertical straightening-rolls t. These rolls are adjustedby screws, as shown. The wire passesthrough eyes j as it is fed, and its end impinges against a stop bar, 10, which causes the forward motion to cease, the wheel It at the same time being reing relieved from the depressing action of the is upon a carriage, P,.which. is moved back ward and forward by a cam, g, on the shaft N. To this carriage are pivoted levers r, fulcrumed at S, and whose rear ends are forced asunder at the proper time by cams ,t upon the shaft N. Between the fore ends'of the levers a" are jaws a, closed by the lever r, and opened by a spring between them.

The operation of jaws u is as follows: As the carriage moves forward the cutter l severs the blank, (which has been thrust. through the forward eye of the link last made,) and at the same time thefront ends of the jaws come in contact with the blank and bend it around the vertical pin v, which is on a levelwith the jaws and in front of the .wire. The jaws still move forward, and as their fore ends iet past the pin o they are forced together by t e cams t, so as to make a perfect eye around the pin 21, the jaws having semicircular recesses u upon their inner sides, to fit the outside of the eye which they form around the pin v. The pin 0 is at the upper end of a bar,,o.', which has vertical movement in the table or bed B by means of a lever, w, to whose forward end it is connected. The lever w is actuated by a cam on shaft N, to draw the pin from the eye after the link is formed, to allow the. link to V be drawn back as the carriage retreats, and

carries it backward.

In forming the first eye of: the link th llor- 'tion of metal from which the other eye is formed is bent forward and carried into the a fork formed by the. pins y 2 upon the end of the former 1, and, as the former 1 turns, somewhat more than half of a rotation, the wire is turned around the center fork or pin 3 by the revolving pin 2, and an eye formed around pin 3 After the eye has been formed the former is drawn back endwise, to draw the pin y from the eye, toallow the link to be carrih l back with the carriage, and the former turns back into position shown in Figs'l to 5. The former 1. receives its movement by the following means: A-portion of the former is provided with cogs 2 engaged by a rack, 3, having endwise reciprocation, operated by a ham, 4, on the shaft N. The reciprocation of the rack causes the oscillation of the former.

The endwise movements of the former are caused by a cam, 5, on the shaft N, whichos cillates a lever, 6, the lever having at the free end a yoke or fork that engages in a circumferential groove of the former.

. The last eye of the link, as left by the-former, is out of line with the other eye, and re: quires to be bent downward. This setting down is accomplished by a lever, 7, on the .carriage 1).

As the carriage moves backward .the rear.

end of the lever 7 (or a friction-roller, 8, thereon) comes in contact with an incline, 9,

and by the raising up of the rear end of the lever causes its fore end 10 to press. down upon the eye, for the purpose described. The end 10 of the lever is raised on the forward movement of the carriage by an incline, '11, upon it working-on a fixed pin, 12

As the carriage is about to reach its backward position the Wire. advances and passes through the eye last made; then, as the jaws u are relieved from the action of the cams t, they are open d.- by a spring between them, and the link falls out of the jaws, and is left suspended by its last-formed eye upon the wire from which the next link is to be made.

3 and z are frictionrolls upon the pins or fork y z of the former 1.. The purpose of the frictionrrolls y and 2 has been fully set forth.

It is, in brief, to prevent the abrasion of the wire and. of the fork, and to-prevent the wire being. drawn out of the jaws u a while the eye s under fo ma ion.

I claim as new and of my invention- 1. In a hain-m ch e, e-fr c nal drivin device having the pulley or other suitable me hanism E; f ct ons r'f f a spr ng H, and nut K, in combination with the pin 2:, the jaws an, and. the forked arm 1, provided with rollers y and 2-, for the purpose set forth.

2- Th combination f the pin v, th j ws u u, and the forked arm 1, provided with the roll- BIS 31"- and z, for the purpose set forth.

T combination of he p X, sp ng the socket Z, and the nut Z with the feedrollers, for th purpose set forth. 7

[EWIS M- BUMSEY. Witne s s;

SAML. KNIGHT,

'F. s. WEEKS. 

